El Príncipe is a slum that sits on the border with Morocco in the Spanish North African enclave of Ceuta and is a “no-go zone for westerners”.

Technically, it is part of the EU, which means its resi- dents are free to live and work in the UK if they please.

Now anti-terror chiefs are being urged to keep a “close eye” on the slum.

The Daily Star visited the area this week, where we saw pro-Islamic State graffiti daubed in El Príncipe’s rabbit warren of streets.

Humphrey Nemar

ALERT: Graffiti supporting Islamic State is daubed on streets.

“They end up turning to extremism, crime or both to find some meaning in their lives.”

Ceuta local

One local said: “Most of the graffiti is done by young unemployed men.

“There are not many jobs here so it’s difficult for the residents, nearly all of whom are Muslims of Moroccan descent.

“So they end up turning to extremism, crime or both to find some meaning in their lives.”

The area has an 80% unemployment rate and has been a notorious hub for drug smugglers.

Another local said: “The next big terror attack on Europe could well involve jihadis from El Príncipe.

“There are so many people here with nothing but jihad to give them a purpose in life.

“It is dangerous. Something needs to be done or there will be bloodshed.”

El Príncipe has the highest rate of people going to fight for Isis per head of population than anywhere in Europe.

HUMPHREY NEMAR

ALERT: Graffiti supporting Islamic State is daubed on streets

A local aid worker, who refused to be named because he feared for his life, said: “Extremism is a real problem here.

“We do our best to help people but it is not easy.

“Most people feel like the Spanish do not care about them.

“They feel ignored and have no opportunities.”

ON THE FRONTLINE: The 50-year-old Brit sniper fighting ISIS in pictures from battlefield

Andrew Duncan, a 50-year-old Iraq war veteran, was moved to tears when he saw footage of families devastated by ISIS. He vowed to put his training to good use and has spent two years as the only western-trained sniper working with the Kurdish Peshmerga fights battling Islamic State

1 / 20

Facebook

The alarming slum is only a stone’s throw from the Moroccan border.

Most outsiders only go there to buy drugs.

A Spanish local, who lives outside of El Príncipe, said: “It is dangerous and if you are not from there you can get attacked.